SAN - GTF

$155 Find Cheap Flights from San Diego to Great Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Great Falls departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Great Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Great Falls, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$255
Overall average: $280
Multiple Airlines
gio 3/19dom 3/22
SAN - GTF • 1 stop
Cheapest one-way
$155
Alaska Airlines
gio 4/2
SAN - GTF • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $327 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 37% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Great Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Great Falls (SAN-GTF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Great Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Great Falls

gio, mar 19 - dom, mar 22
Multiple Airlines Logo
8:39 pm - 9:30 am
SAN
-
GTF
11h 51m
1 stop
Multiple Airlines Logo
10:02 pm - 9:28 pm
GTF
-
SAN
24h 26m
1 stop
$255Multiple Airlines
gio, feb 19 - lun, feb 23
Multiple Airlines Logo
2:38 pm - 9:52 am
SAN
-
GTF
18h 14m
1 stop
Multiple Airlines Logo
10:42 am - 8:24 pm
GTF
-
SAN
34h 42m
2 stops
$307Multiple Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
8:43 pm - 4:26 pm
SAN
-
GTF
18h 43m
1 stop
Alaska Airlines Logo
5:06 pm - 9:54 am
GTF
-
SAN
17h 48m
2 stops
$327Alaska Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
8:43 pm - 4:26 pm
SAN
-
GTF
18h 43m
1 stop
Alaska Airlines Logo
5:06 pm - 6:39 pm
GTF
-
SAN
26h 33m
1 stop
$332Alaska Airlines
gio, mar 19 - dom, mar 22
Delta Logo
7:30 am - 5:42 pm
SAN
-
GTF
9h 12m
2 stops
Delta Logo
1:05 pm - 10:28 pm
GTF
-
SAN
10h 23m
2 stops
$333Delta
gio, mar 19 - dom, mar 22
Multiple Airlines Logo
8:39 pm - 9:30 am
SAN
-
GTF
11h 51m
1 stop
Multiple Airlines Logo
10:02 pm - 9:03 pm
GTF
-
SAN
24h 01m
2 stops
$344Multiple Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
6:15 am - 4:26 pm
SAN
-
GTF
9h 11m
1 stop
Alaska Airlines Logo
5:06 pm - 9:54 am
GTF
-
SAN
17h 48m
2 stops
$347Alaska Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
9:03 pm - 4:26 pm
SAN
-
GTF
18h 23m
2 stops
Alaska Airlines Logo
5:06 pm - 9:54 am
GTF
-
SAN
17h 48m
2 stops
$360Alaska Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
7:57 pm - 4:26 pm
SAN
-
GTF
19h 29m
2 stops
Alaska Airlines Logo
5:06 pm - 9:54 am
GTF
-
SAN
17h 48m
2 stops
$363Alaska Airlines
gio, apr 9 - dom, apr 12
Alaska Airlines Logo
7:56 pm - 4:26 pm
SAN
-
GTF
19h 30m
2 stops
Alaska Airlines Logo
5:06 pm - 9:06 am
GTF
-
SAN
17h 00m
2 stops
$380Alaska Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Great Falls flights

Get data-powered insights and trends into flights from San Diego to Great Falls to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Diego to Great Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Great Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Great Falls is March, where tickets cost $280 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $796 and $686 respectively.

Good to know

Low seasonSeptember
Cheapest flight$155
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from San Diego to Great Falls

When to book flights from San Diego to Great Falls

Are your dates flexible? Find out the best times to travel from San Diego to Great Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Diego to Great Falls

  • What is the cheapest flight from San Diego to Great Falls?

    In the last 3 days, the lowest price for a flight from San Diego to Great Falls was $155 for a one-way ticket and $255 for a round-trip.

  • Do I need a passport to fly between San Diego and Great Falls?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from San Diego to Great Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Diego to Great Falls?

    Star Alliance, and SkyTeam are the airline alliances operating flights between San Diego and Great Falls, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Diego to Great Falls, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to Great Falls are Delta and United Airlines. With an average price for the route of $374 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $576 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Diego to Great Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Great Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Great Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Great Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to San Diego with another airline. Booking your flights between San Diego and GTF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Great Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Diego to Great Falls

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Great Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Great Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8151 reviews
7.9Comfort
7.2Food
8.5Crew
8.1Boarding
7.8Entertainment
Airline reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

10.0 ExcellentDr. Simon, Jan 2026
LAX - JFK
Read more Delta reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Older aircraft, no meal, only food was for purchase. Not impressed United.

Everything you need to know for your flight from San Diego to Great Falls

Information on your arrival and departure airports